Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method

Tungsten oxide (WO 3) nanoplates were synthesized by a 270 W microwave-hydrothermal reaction of Na 2WO 4·2H 2O and citric acid (C 6H 8O 7· H 2O) in deionized water. X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), and selected are...

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Main Authors:	Sungpanich J., Thongtem T., Thongtem S.
Format:	Article
Language:	English
Published:	2014
Online Access:	http://www.scopus.com/inward/record.url?eid=2-s2.0-83555174770&partnerID=40&md5=f16ce1acc063620ec4f228bb86e36de3 http://cmuir.cmu.ac.th/handle/6653943832/6030
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Institution:	Chiang Mai University
Language:	English

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spelling	th-cmuir.6653943832-60302014-08-30T03:23:45Z Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method Sungpanich J. Thongtem T. Thongtem S. Tungsten oxide (WO 3) nanoplates were synthesized by a 270 W microwave-hydrothermal reaction of Na 2WO 4·2H 2O and citric acid (C 6H 8O 7· H 2O) in deionized water. X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED) were used to reveal the synthesis of WO 3 complete rectangular nanoplates in the solution of 0.2 g citric acid for 180 min, with O-W-O FTIR stretching modes at 819 and 741 cm -1, and two prominent O-W-O Raman stretching modes at 804 and 713 cm -1. The 2.71 eV indirect energy gap, and 430-460 nm blue emission wavelength range of WO 3 complete rectangular nanoplates were determined using UV-visible and photoluminescence (PL) spectrometers. The formation mechanism was also proposed according to the experimental results. © 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved. 2014-08-30T03:23:45Z 2014-08-30T03:23:45Z 2012 Article 2728842 10.1016/j.ceramint.2011.08.030 CINND http://www.scopus.com/inward/record.url?eid=2-s2.0-83555174770&partnerID=40&md5=f16ce1acc063620ec4f228bb86e36de3 http://cmuir.cmu.ac.th/handle/6653943832/6030 English
institution	Chiang Mai University
building	Chiang Mai University Library
country	Thailand
collection	CMU Intellectual Repository
language	English
description	Tungsten oxide (WO 3) nanoplates were synthesized by a 270 W microwave-hydrothermal reaction of Na 2WO 4·2H 2O and citric acid (C 6H 8O 7· H 2O) in deionized water. X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED) were used to reveal the synthesis of WO 3 complete rectangular nanoplates in the solution of 0.2 g citric acid for 180 min, with O-W-O FTIR stretching modes at 819 and 741 cm -1, and two prominent O-W-O Raman stretching modes at 804 and 713 cm -1. The 2.71 eV indirect energy gap, and 430-460 nm blue emission wavelength range of WO 3 complete rectangular nanoplates were determined using UV-visible and photoluminescence (PL) spectrometers. The formation mechanism was also proposed according to the experimental results. © 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
format	Article
author	Sungpanich J. Thongtem T. Thongtem S.
spellingShingle	Sungpanich J. Thongtem T. Thongtem S. Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
author_facet	Sungpanich J. Thongtem T. Thongtem S.
author_sort	Sungpanich J.
title	Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
title_short	Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
title_full	Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
title_fullStr	Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
title_full_unstemmed	Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method
title_sort	large-scale synthesis of wo 3 nanoplates by a microwave-hydrothermal method
publishDate	2014
url	http://www.scopus.com/inward/record.url?eid=2-s2.0-83555174770&partnerID=40&md5=f16ce1acc063620ec4f228bb86e36de3 http://cmuir.cmu.ac.th/handle/6653943832/6030
_version_	1681420537245466624

Large-scale synthesis of WO 3 nanoplates by a microwave-hydrothermal method

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